Method for determining blank with different thicknesses for two-dimensional integrated loading and forming

A billet and unequal technology, applied in the field of hot forging of difficult-to-deform alloys, can solve problems such as high cost, failure to consider local loading characteristics, and areas that cannot be filled
CN102581183AInactive Publication Date: 2012-07-18NORTHWESTERN POLYTECHNICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTHWESTERN POLYTECHNICAL UNIV
Publication Date
2012-07-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for determining a blank with different thicknesses for two-dimensional integrated loading and forming. The method comprises the following steps of: quickly forecasting material flowability and cavity filling of a multi-rib structural member during two-dimensional forming based on partial loading characteristics according to a resolving analysis calculation formula; quickly determining the shape of the blank with different thicknesses of a two-dimensional base body by quickly analyzing the material flowability and the cavity filling on a cross section; performing value simulation; modifying the shape of the blank with different thicknesses according to a value simulation result by considering the partial loading flow characteristics; and obtaining the final shape of the blank with different thicknesses by adjusting and modifying for zero or a plurality of times. According to the determined blank with different thicknesses, the problem that the cavity cannot be filled fully during forming can be solved completely, and the optimized design time is shortened. The determined of the blank with different thicknesses is distributed rationally; shortcomings that the cavity cannot be filled fully, the blank is folded and the like during forming are overcome; the machining allowance and the forming load are reduced; the shape of the blank is simple; and the blank is easy to make.
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Description

Technical field

[0001] The invention relates to the hot working forging of hard-to-deform alloys in the field of hot working, in particular to a method for determining blanks of unequal thickness for two-dimensional integral loading forming. technical background

[0002] The use of high-performance lightweight alloy materials, such as aluminum alloys and titanium alloys, and the use of lightweight structures, such as thin-walled, integral, and ribbed structures, are effective technical ways to improve the performance and reliability of parts and components, and to achieve lightweight equipment . The rib-type integral member with high rib and thin web structure effectively improves the structural efficiency, reduces the weight of the equipment and has excellent service performance. It is an important lightweight bearing member in aerospace vehicles.

[0003] Generally, in order to reduce useless material flow, the horizontal projection shape of the blank should be close to the forg...

Claims

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